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Abstract
By way of sub-transmission, bulldozers can be divided into mechanical bulldozer,hydrostatic bulldozers and hydraulic mechanical bulldozer. No matter what transmission mode to maximize power and economy bulldozers, to ensure maximum productivity bulldozers are the ultimate goal. Bulldozers, construction machinery, as Traction typical of speed and load only between the pursuit of adaptive capacity, full use of engine power, improve operational productivity, reduce the specific fuel consumption, that maximize the power, economy, job productivity, that is, that should be full engine power, transmission efficiency should be higher, the whole operation should have better productivity, but these three are with the bulldozer is closely related to transmission. The design of several projects by reference to typical mechanical structure, such as the Z435 loaders, Komatsu D155A bulldozer, C5-6-type transport bulldozers, crawler shovel is designed with a fixed axis torque converter power shift transmission box, turned to two-stage clutch and planetary final rotation, and gear for the calculation and checking. Keywords: crawler tractors, fixed-axis gearbox, dual-stage planetary final drive.
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